CN101764283A - Planar radiating element with dual polarisation and network antenna comprising such a radiating element - Google Patents
Planar radiating element with dual polarisation and network antenna comprising such a radiating element Download PDFInfo
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- CN101764283A CN101764283A CN200910260640A CN200910260640A CN101764283A CN 101764283 A CN101764283 A CN 101764283A CN 200910260640 A CN200910260640 A CN 200910260640A CN 200910260640 A CN200910260640 A CN 200910260640A CN 101764283 A CN101764283 A CN 101764283A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0478—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with means for suppressing spurious modes, e.g. cross polarisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0464—Annular ring patch
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Abstract
A dual-polarization planar radiating element having an external metal grid, at least one metal patch concentric with the external metal grid and a cavity separating the metal grid and the metal patch, the grid and the patch having a polygonal shape delimited by at least four pairwise opposite sides, and two orthogonal directions of polarization associated with two orthogonal electric fields Ev and Eh, at least one of the directions of polarization being parallel to two sides of the polygon. Each side of the metal patch parallel to a direction of polarization is linked electrically to a zone of the external grid where one of the electric fields Ev or Eh is a minimum. The invention exhibits the advantage of reducing the phenomenon of electrostatic discharges in the planar radiating elements without significantly modifying the response of the radiating element subjected to an orthogonally polarized wave.
Description
Technical field
The present invention relates to a kind of dual polarization planar radiation elements, wherein the static discharge phenomenon is minimized, the invention still further relates to a kind of array antenna that comprises such radiant element.The present invention is applied to comprise the antenna of any kind of at least one dual polarization planar radiation elements, also be applied to be installed to the radiating curtain of determining antenna and be loaded into for example carry-on array antenna of satellite, for example reflection type array antenna or phase control type array antenna.
Background technology
Array antenna, for example reflection type array antenna or phase control type array antenna (also being known as phased array antenna) comprise the one group of fundamental radiation element that is assembled into one dimension or two-dimensional radiation array, make it possible to increase the directivity and the gain of antenna.In mirror antenna, the fundamental radiation element of array generally includes the layout of vicissitudinous of size and slit.The shape of radiant element, for example square, circular (circular), hexagon, usually for array be fix and be unique.When radiant element is shone by main source, adjust the size of radiant element so that the radiating pattern that obtains to select.In the phase control type array antenna, signal allocation is finished by the beam shaping distributor to the radiant element of array.
The fundamental radiation element can comprise the structure with cavity and radiation slit that is installed on the metal flat, perhaps comprise planar structure with metal radiation fin, the metal radiation fin is printed on the surface that is installed in the dielectric substrate on the metal flat, and sheet metal may comprise for example one or more slits shown in Fig. 1.The radiation slit can be made by dielectric material or composite material, and for example stack of the honeycomb of printed with fine (printed fine) dielectric substrate is as the top layer of composite material.Yet,, need guarantee that the static discharge phenomenon between the radiant element minimizes in order to make that antenna can the support space environment.
On the known main metal structure that is connected to aircraft by the conductive outer surface that aircraft is all and all interior metal elements static discharge is minimized.For the linearly polarized radiant element, can by metal wire radiant element be connected to the external metallization grid along the symmetry axis that is orthogonal to polarised direction and be grounded, and not have any specific question.
But,, need to consider the polarization of various radiant elements for the radiating curtain that comprises fundamental radiation element with dual-polarized planar structure.Really, for example the mode by metal wire is directly connected to the polarization and the operation that will influence these elements together with radiant element, and can destroy resonance, and encourages other more height modes (higher modes).In addition, under the situation of array antenna, may destroy the coupling of radiant element.
Summary of the invention
Purpose of the present invention solves this problem by a kind of dual polarization planar radiation elements is provided, wherein the phenomenon of static discharge be minimized and not the interference emission element to the response of the orthogonally polarized wave that bears.
For this purpose, theme of the present invention is a kind of dual polarization planar radiation elements, it is characterized in that, it comprises the external metallization grid, with concentric at least one sheet metal of external metallization grid, and the cavity that metal grate and metal are separated, described grid and sheet have the polygonal shape that is limited by at least four paired relative edges (pairwise opposite sides), wherein, the dual polarization planar radiation elements comprises two orthogonal polarizations directions that are associated with the electric field of two quadratures, in the described polarised direction at least one is parallel with described polygonal both sides, and each limit of wherein parallel with polarised direction sheet metal is electrically connected to the zone of described external grid, and one in the electric field in this zone minimum.
Advantageously, the polygonal shape of described sheet metal is selected from square, rectangle, crux, hexagon.
Advantageously, described planar radiation elements comprises four paired quadrature limits, and each limit that is parallel to the sheet metal of polarised direction is connected respectively to the external grid that is orthogonal to described polarised direction.
Preferably, each limit that is parallel to the sheet metal of polarised direction comprises the center, and it is connected to the center on the limit of the external grid that is orthogonal to described polarised direction.
According to a particular embodiment of the invention, sheet metal can comprise the several orthogonal slit that forms the central cross frame.
According to another embodiment of the invention, sheet metal comprises outside ring segment, at least one and the concentric internal sheets of outside ring segment and at least one narrow annular slot that internal sheets and outer plate are separated, affiliated internal sheets has identical polygonal shape with outer plate, and each limit that wherein is parallel to the interior metal sheet of polarised direction is connected to the limit of the outside ring segment that is orthogonal to described polarised direction.
Alternatively, internal sheets can comprise the several orthogonal slit of the cross at formation center.
Preferably, each limit that is parallel to the interior metal sheet of polarised direction comprises the center, and it is connected to the center on the limit of the outside ring segment that is orthogonal to described polarised direction.
According to a particular embodiment of the invention, the polygonal shape of sheet metal is a crux, and external grid has square shape.
According to another embodiment of the invention, sheet metal comprises outside ring segment, at least one and the concentric internal sheets of outside ring segment, and at least one narrow annular slot that internal sheets and outer plate are separated, described internal sheets and outer plate have hexagonal shape, this hexagonal shape comprises two limits that are parallel to polarised direction, and tilt and four limits by the paired connection in summit with respect to described polarised direction, each limit that wherein is parallel to the exterior metal sheets of described polarised direction is electrically connected to the summit of internal sheets, and each limit that is parallel to the internal sheets of described polarised direction is electrically connected to the summit of exterior metal sheets.
The invention still further relates to a kind of array antenna, it comprises at least one dual polarization planar radiation elements, and the external metallization grid of each radiant element is connected to the metal ground plane of this array.
Description of drawings
With reference to accompanying drawing, by the following specification that provides with illustrative rather than restrictive way of example only, characteristics of the present invention and advantage become more obvious, wherein:
Fig. 1: the figure of exemplary array antenna;
Fig. 2: the figure of the first exemplary dual polarization fundamental radiation element of making by planar technique;
Fig. 3 a and 3b: from two figure that pass through the second and the 3rd exemplary dual polarization fundamental radiation element that planar technique makes that watch;
Fig. 4,5a, 5b: according to three schematic diagrames from watching of three exemplary radiation elements of the present invention;
Fig. 6: according to the schematic diagram from watching of the 4th exemplary radiation element of the present invention;
Fig. 7 and 8: according to two schematic diagrames from watching of the of the present invention the 5th and the 6th exemplary radiation element;
Fig. 9 a, 9b, 9c: according to three schematic diagrames from watching of three exemplary radiation arrays of the present invention.
Embodiment
Fig. 1 shows exemplary array antenna 10, comprises the reflective array 11 that forms reflecting surface 14, and the main source 13 that is used for shining by incident wave reflective array 11.Reflective array comprises a plurality of fundamental radiation elements that are arranged as two-dimensional surface.
In Fig. 2, illustrate and have the dual-polarized first exemplary fundamental radiation element 12, it comprises the top sheet metal 15 that is printed on substrate 16, substrate 16 (lower face) in its lower section is equipped with metal ground plane 17, and substrate can be dielectric material or for example have the interval insulant of cellular type and the composite material of meticulous dielectric material (fine dielectric material).Sheet metal 15 comprises two slits 18 of the crux that is manufactured on its center.The shape of fundamental radiation element 12 can be for example square, rectangle, hexagon, circle, crux or any other geometry.The number of slit can not be 2 also, and they can be arranged as and are not cross.In Fig. 2, slit has identical size but they can be different sizes.
In Fig. 3 a, illustrate the second exemplary dual polarization planar radiation elements.Radiant element has polygon, and is for example square, and comprises the second outside annular sheet metal of the first interior metal sheet 30, formation becket 31, and with external metallization ring 31 and interior metal sheet 30 separated narrow annular slots 32.Internal sheets, ring and slit are concentric.When radiant element is polarized orthogonally by two field waves, corresponding to two the electric field Ev and the Eh mutually orthogonal of two polarised directions.Electric field Ev is parallel to first limit 33 of radiant element, and it is mutually orthogonal that electric field Eh is parallel to 34, the first and second limits 33,34, second limit of radiant element.During cycle of the polarization mode that equals to set up when the circumference of narrow annular slot 32, narrow annular slot 32 is a resonance.Therefore, shown in Fig. 3 a, electric field Ev is maximum at definite regional 35 of slit, and here electric field Eh is minimum, and in another zone 36 of electric field Eh maximum, electric field Ev disappears.A zone that little by little disappears respectively among electric field Ev, the Eh is the zone that external rings is parallel to corresponding polarised direction.In the position that electric field Ev, Eh disappear respectively, can between internal sheets and external rings, place short circuit, because this will be not the response of the radiant element that bears the ripple that polarizes according to this pattern is impacted.In fact, shown in 3b, for each polarization, narrow annular slot 32 is equal to two and half slits (half-slots) of the shape of the semi-ring with two complementations, and two semi-rings are symmetrical arranged with respect to the perpendicular bisector on the limit parallel with corresponding polarization.Therefore, for polarization Ev, narrow annular slot 32 is equal to two and half slits 1,2, and its perpendicular bisector 5 with respect to limit 33 is symmetrical arranged.Similar, for polarization Eh, narrow annular slot 32 is equal to two and half slits 3,4, and its perpendicular bisector 6 with respect to limit 34 is symmetrical arranged.Therefore four and half slits that comprise four staggered semi-rings shown in Fig. 3 b show as for each Ev that polarizes, Eh and are equal to the narrow annular slot shown in Fig. 3 a.
The performance of the radiant element shown in Fig. 3 a and the 3b is equal to the radiant element that position that electric field Ev between internal sheets and external rings or Eh disappear has short circuit, as shown in Figure 4.In this example, according to the present invention, each limit of interior metal sheet 30 for example is electrically connected to one side with the external rings 31 of its quadrature by metal wire 37.Preferably, metal wire 37 is connected to middle part with the limit of the external rings 31 of its quadrature with the middle part on the limit of interior metal sheet 30.Away from resonance, in which way the slit short circuit can not changed significantly the attribute of radiant element.When slit when the resonance, this has only a small amount of influence when being electrically connected radiant element by the orthogonal polarization wave excitation, thus each polarised direction is parallel to one in the limit of sheet and external rings.In fact, maximum corresponding to the electric field of each polarised direction in the zone of slit during perpendicular to described polarised direction, and be parallel in the zone of described polarised direction very faint or be actually zero at slit.
When as mentioned above, when each limit of internal sheets was connected to external rings, the parasitic electrostatic charge that occurs on internal sheets leaked electricity towards external rings.It enough is connected to the external rings of radiant element on its antenna that is installed on or the radiating curtain metallics then, so that remove electrostatic charge.
As shown in Fig. 5 a, when radiant element is integrated into radiating curtain, can increase the external metallization grid so that electrostatic charge towards the metal ground plane of array, for example ground plane 17 electric leakages of radiant element.
Radiant element shown in Fig. 5 a comprises for example being foursquare sheet metal 15, and wherein making has two the quadrature slits 18,20 that form cross.Be positioned at the center of sheet metal as the Gacrux, and make each slit be parallel to foursquare two relative edges.Optionally, cross can comprise extra quadrature slit 21,22,23,24, for example for being called the cross of jerusalem cross (Jerusalem cross), as shown in Fig. 5 b, it comprises respectively four extra slits placing with the two ends quadrature of each central slot.Radiant element 39 also comprises the external metallization annular grid 38 of the cavity 41 that defines between grid and the sheet metal.Outside annular metal grate and sheet metal are concentric, and have identical geometry.Cavity 41 is as the radiation slit and participate in overall radiation.The geometry of the sheet shown in Fig. 5 a and the 5b is foursquare, but the invention is not restricted to the shape of this type.Especially, the present invention also is applied to sheet or polygonal of at least four paired relative edges' qualifications of quilt, for example hexagon or the crux of rectangle.According to the present invention, each limit 42,43,44,45 of sheet metal for example is electrically connected to limit 47,48,49,50 with the external grid 38 of its quadrature by metal wire 46.Preferably, metal wire is connected to middle part with the limit of the external grid of its quadrature with the middle part on the limit of interior metal sheet.The inference identical with the example that is applied to Fig. 4 is for replacing becket 31 still effective with metal grate 38.
When each limit of internal sheets was connected to external grid as mentioned above, the parasitic electrostatic charge that appears on this sheet leaked electricity towards external grid.It enough is connected to the external grid of radiant element on the metallics of its antenna that is installed on or radiating curtain then, so that remove electrostatic charge.
Fig. 6 shows according to the 3rd exemplary radiation element of the present invention.In this example, the geometry of radiant element is hexagon and comprises 6 paired relative edges.This radiant element comprises two concentric annular sheet metals 61,62 that separated by narrow annular slot 63.When this radiant element by the orthogonal polarization wave excitation, make one of them polarised direction Eh be parallel to hexagonal two relative edges 64,65 o'clock, Ev externally sheet perpendicular to minimum in the zone of field Ev, the zone on the summit that intersect on just hexagonal limit 66,67,68,69 that is not parallel to any polarised direction.Therefore, each limit 72,73 that is parallel to the internal sheets 62 of one of them polarised direction Eh is electrically connected to the limit that is not parallel to any polarised direction 66,67 and 68,69 summits 70,71 of intersecting of outer plate 61.Similar, the summit 74,75 that intersect on the limit that is not parallel to any polarised direction 56,57,58,59 of internal sheets 62 is electrically connected to the limit that is parallel to polarised direction Eh 65,64 of outer plate 61.In previous examples, when being integrated into radiant element in the radiating curtain, increase unshowned external metallization grid, for example ground plane 17 electric leakages of radiant element with the metal ground plane of electrostatic charge towards array.
Identical principle also is applied to comprise the radiant element of a plurality of narrow annular slots 76,77 and a plurality of concentricity sheet metal 78,79,80, and each narrow annular slot separates two adjacent sheets, for example shown in Fig. 7 and 8.In the case, each limit that is parallel to the first interior metal sheet 80 of polarised direction is electrically connected to the quadrature limit around second annular sheet metal 79 of this sheet metal, and each limit that is parallel to second annular sheet metal 79 of polarised direction is electrically connected to the quadrature limit around the 3rd sheet metal 78 of this sheet metal.Continue by this way for each sheet metal, be about to all by an annular sheet metal around each limit that is parallel to polarised direction of sheet metal of inside be connected to quadrature limit around the described annular sheet metal of this annular sheet metal.In addition, radiant element can comprise the outside annular metal grate 94 that is separated by cavity 98 and outside ring segment 78.In the case, with reference to Fig. 5 as previously mentioned, each limit of the 3rd exterior metal sheets 78 is electrically connected to the limit with the external grid 94 of its quadrature.
In Fig. 8, radiant element comprises the cross at foursquare external grid 82 and center, and the cross at center is separated from external grid by cavity 88.The cross at center comprises the annular sheet metal 83,84 of two cruxs that separated by crux narrow annular slot 85, and two the quadrature slits 86,87 of formation cross that are positioned at the center of radiant element.Each cross is parallel to the zone of the first polarised direction Ev and the zone that is parallel to the second polarised direction Eh for each slit 85,86,87 comprises.Equally, each annular sheet metal 83,84 and grid 82 comprise the limit of and quadrature parallel with the first polarised direction Ev, and and limit quadrature parallel with the second polarised direction Eh.Just as example shown in Figure 7, each limit that is parallel to the first interior metal sheet 84 of polarised direction is electrically connected to the quadrature limit of second annular sheet metal 83, perhaps around its quadrature limit of external metallization grid 82.The crux planar radiation elements of the type has been showed than the littler advantage of dimension of picture that narrow annular slot is arranged in square or circular element, because power path has been elongated.Therefore they can be inserted in the littler array of mesh, and this performance for the bandwidth aspect is favourable, thereby improve the response of array to the ripple of unexpected incident.
Fig. 9 a, 9b, 9c illustrate according to three exemplary radiation arrays of the present invention.The array of Fig. 9 a comprises two dual polarization planar radiation elements, and each radiant element 39,40 comprises sheet metal 15,19 and the external grid that is separated from this sheet by cavity.Two radiant elements are adjacent and two external grid 50,51 comprise common limit 49.Each limit of sheet metal is electrically connected to the quadrature limit of external grid.
The array of Fig. 9 b and 9c comprises four dual polarization planar radiation elements.In Fig. 9 b, first annular sheet metal 79 that each radiant element 90,91,92,93 comprises interior metal sheet 80, separated from this internal sheets by first narrow annular slot 77, second annular sheet metal 78 that is separated from first ring segment 79 by second narrow annular slot 76, the endless metal grid 94,95,96,97 that is separated from second annular sheet metal 78 by cavity 98.Described four radiant elements are that four grids that adjoin each other and described comprise paired common edge 99,101,102,103.
In Fig. 9 c, each radiant element 104,105,106,017 comprises two central slot 86,87 of being crux, around the first inner annular sheet 84 of the cross at this center, second ring segment 83 that outside first ring segment 84 and by narrow annular slot 85, is spaced from and outside annular metal grate 82 foursquare and that separated from second annular sheet metal 83 by cavity 88, as shown in Figure 8.Described four radiation sources four grids adjacent each other and described comprise paired common edge.
Each sheet metal comprises the limit that is parallel to polarised direction, and described limit is connected to the quadrature limit around its sheet metal, perhaps for second ring segment, is connected to the quadrature limit of external metallization grid.All electrostatic charges thereby towards external metallization grid electric leakage, and can the interference emission element to the response of the orthogonally polarized wave that bears.After this by external grid is connected to ground metal plane, electrostatic charge is towards the metal ground plane discharge of array.
The radiating curtain of various sizes and characteristic thereby the one dimension that can constitute required size by a plurality of radiant elements are combined or two-dimensional radiation surface constitute.Element can be all identical or can be different structure, depend on the type of required antenna.After this array fitted to be selected array antenna, for example the array antenna of the example shown in Fig. 1 or any other type.
Although the present invention is described with reference to specific embodiment, obviously this should not be limited to this with the present invention, but comprises all technical equivalents of described device and fall into the interior combination of framework of the present invention.Especially, can make the combination of the quadrature central slot of all solid or ring segments and crux, cross can comprise a plurality of quadrature slits more than or equal to 2, for example simple cross or jerusalem cross.Similar, the planar radiation elements with hexagonal geometries or crux can comprise difform external grid, for example square.In addition, hexagonal radiant element can comprise internal sheets, and this internal sheets has the central slot of the quadrature that forms simple cross or jerusalem cross.
Claims (11)
1. dual polarization planar radiation elements, it is characterized in that, this dual polarization planar radiation elements comprises external metallization grid (38,82), with concentric at least one sheet metal of external metallization grid (38) (15), and with metal grate (38,82) cavity (41) that separates with sheet metal (15), described grid and sheet have by at least four paired relative edges (42,43,44,45) polygonal shape of Xian Dinging, wherein, this dual polarization planar radiation elements comprises two orthogonal polarizations directions that are associated with the electric field Ev and the Eh of two quadratures, in the described polarised direction at least one is parallel with described polygonal both sides, and each limit (42 of wherein parallel sheet metal (15) with polarised direction, 43,44,45) be electrically connected (46) zone (47 to described external grid, 48,49,50), wherein among electric field Ev or the Eh in this zone minimum.
2. planar radiation elements according to claim 1 is characterized in that the polygonal shape of described sheet metal is selected from square, rectangle, crux or hexagon.
3. planar radiation elements according to claim 2, it is characterized in that, this planar radiation elements comprises four paired quadrature limits (42,43,44,45), and each limit (42,43,44,45) that is parallel to the sheet metal (15) of polarised direction is connected respectively to the limit (46 of the external grid (38) that is orthogonal to described polarised direction, 48,49,50).
4. planar radiation elements according to claim 3, it is characterized in that, each limit (42,43,44,45) that is parallel to the sheet metal (15) of polarised direction comprises that center, this center are connected to the center on the limit of the external grid (38) that is orthogonal to described polarised direction.
5. according to any described planar radiation elements in the claim 1 to 4, it is characterized in that described sheet metal (15) also comprises at least two the quadrature slits (18) that form the central cross frame.
6. according to any described planar radiation elements in the claim 1 to 5, it is characterized in that, sheet metal (15) comprises outside ring segment (31,83), at least one and the concentric internal sheets of outside ring segment (31) (30,84) and at least one narrow annular slot (32) that internal sheets (30) and outer plate (31) are separated, described internal sheets has identical polygonal shape with outer plate, and each limit that wherein is parallel to the interior metal sheet (30) of polarised direction is connected to the limit that (37) are orthogonal to the outside ring segment (31) of described polarised direction.
7. planar radiation elements according to claim 6 is characterized in that, each limit that is parallel to the interior metal sheet (30) of polarised direction comprises the center, and this center is connected to the center on the limit of the outside ring segment (31) that is orthogonal to described polarised direction.
8. according to claim 6 or 7 described planar radiation elements, it is characterized in that internal sheets (84) comprises at least two quadrature slits (86,87) of the cross at formation center.
9. according to any described planar radiation elements in the claim 6 to 8, it is characterized in that the polygonal shape of sheet metal (83,84) is a crux, and external grid (82) has square shape.
10. planar radiation elements according to claim 2, it is characterized in that, sheet metal (15) comprises outside ring segment (61), at least one and the concentric internal sheets of outside ring segment (61) (62) and at least one narrow annular slot (63) that internal sheets (62) and outer plate (61) are separated, described internal sheets and outer plate have polygonal shape, this polygonal shape comprises two limits (72 that are parallel to polarised direction, 73,64,65), and with respect to described polarised direction inclination and by summit (74,75,70,71) four limits (56 of paired connection, 57,58,59,66,67,68,69), each limit (64 that wherein is parallel to the exterior metal sheets of described polarised direction, 65) be electrically connected to the summit (74 of internal sheets, 75) each limit (72 that, is parallel to the internal sheets (62) of described polarised direction, 73) be electrically connected to the summit (71 of exterior metal sheets (61), 70).
11. array antenna, it is characterized in that, this array antenna comprises at least one according to any described dual polarization planar radiation elements in the aforementioned claim, and the external metallization grid of each radiant element is connected to the metal ground plane (17) of this array.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR08/07401 | 2008-12-23 | ||
| FR0807401A FR2940532B1 (en) | 2008-12-23 | 2008-12-23 | PLANAR RADIATION ELEMENT WITH DUAL POLARIZATION AND NETWORK ANTENNA COMPRISING SUCH A RADIANT ELEMENT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101764283A true CN101764283A (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910260640A Pending CN101764283A (en) | 2008-12-23 | 2009-12-18 | Planar radiating element with dual polarisation and network antenna comprising such a radiating element |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8248306B2 (en) |
| EP (1) | EP2202846B1 (en) |
| JP (1) | JP2010154530A (en) |
| KR (1) | KR101640604B1 (en) |
| CN (1) | CN101764283A (en) |
| AT (1) | ATE539464T1 (en) |
| CA (1) | CA2687161C (en) |
| ES (1) | ES2377784T3 (en) |
| FR (1) | FR2940532B1 (en) |
| RU (1) | RU2490759C2 (en) |
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| SE515453C2 (en) * | 1999-10-29 | 2001-08-06 | Ericsson Telefon Ab L M | Double-polarized antenna element method for supplying power to two orthogonal polarizations in such an antenna element and method for obtaining said element |
| EP1315239A1 (en) * | 2001-11-22 | 2003-05-28 | Marconi Communications GmbH | Parabolic reflector and antenna incorporating same |
| KR200366457Y1 (en) * | 2004-06-16 | 2004-11-09 | (주) 다이시스 | Satallite broadcasting antenna equipped plane-reflex-arrangement-plate |
| KR100734005B1 (en) * | 2006-01-18 | 2007-06-29 | 인천대학교 산학협력단 | Single-feed dual-band circularly polarized single patch antenna |
| DE602007003322D1 (en) * | 2007-04-16 | 2009-12-31 | Research In Motion Ltd | Dual polarized microstrip patch antenna arrangement and associated method for a radio |
| US7999745B2 (en) * | 2007-08-15 | 2011-08-16 | Powerwave Technologies, Inc. | Dual polarization antenna element with dielectric bandwidth compensation and improved cross-coupling |
-
2008
- 2008-12-23 FR FR0807401A patent/FR2940532B1/en not_active Expired - Fee Related
-
2009
- 2009-09-14 EP EP09170166A patent/EP2202846B1/en active Active
- 2009-09-14 ES ES09170166T patent/ES2377784T3/en active Active
- 2009-09-14 AT AT09170166T patent/ATE539464T1/en active
- 2009-09-17 RU RU2009134902/08A patent/RU2490759C2/en active
- 2009-10-14 US US12/578,831 patent/US8248306B2/en active Active
- 2009-12-02 CA CA2687161A patent/CA2687161C/en active Active
- 2009-12-18 CN CN200910260640A patent/CN101764283A/en active Pending
- 2009-12-18 JP JP2009287956A patent/JP2010154530A/en active Pending
- 2009-12-22 KR KR1020090128859A patent/KR101640604B1/en active IP Right Grant
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818943A (en) * | 2012-07-27 | 2012-12-12 | 北京航空航天大学 | Quick measuring probe of dual polarization electric field |
| CN102818943B (en) * | 2012-07-27 | 2014-07-30 | 北京航空航天大学 | Quick measuring probe of dual polarization electric field |
| CN106207419A (en) * | 2016-09-08 | 2016-12-07 | 中国电子科技集团公司第五十四研究所 | A kind of dual circularly polarized antenna unit and big spacing low graing lobe broadband flat plate array antenna |
| CN108346854A (en) * | 2018-02-06 | 2018-07-31 | 中国电子科技集团公司第三十八研究所 | A kind of antenna with couple feed structure |
| CN112385079A (en) * | 2018-07-13 | 2021-02-19 | 楼氏卡泽诺维亚公司 | Millimeter wave filter array |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2202846A1 (en) | 2010-06-30 |
| RU2009134902A (en) | 2011-03-27 |
| FR2940532A1 (en) | 2010-06-25 |
| CA2687161C (en) | 2016-05-10 |
| CA2687161A1 (en) | 2010-06-23 |
| ATE539464T1 (en) | 2012-01-15 |
| RU2490759C2 (en) | 2013-08-20 |
| US20100156725A1 (en) | 2010-06-24 |
| ES2377784T3 (en) | 2012-03-30 |
| FR2940532B1 (en) | 2011-04-15 |
| KR20100074053A (en) | 2010-07-01 |
| JP2010154530A (en) | 2010-07-08 |
| KR101640604B1 (en) | 2016-07-18 |
| US8248306B2 (en) | 2012-08-21 |
| EP2202846B1 (en) | 2011-12-28 |
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